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slega [8]
2 years ago
7

What are the steps for using a compass and straightedge to construct the bisector of ZA?

Mathematics
2 answers:
romanna [79]2 years ago
6 0

The order of the steps is:

Step 1. is the fifth statement

Step 2. is the first statement

Step 3. is the second statement

Step 4. is the third statement

Step 5. is the fourth statement

Step-by-step explanation:

Lets revise the steps of construct the bisector of ∠ A

Steps:

1. Place the point of the compass on point A and draw an arc that

intersects the sides of ∠A

Label the points of intersection as points B and C

2. Place the point of the compass on point B and draw an arc in the

interior of the angle

3. Without changing the opening of the compass place the point of

the compass on point C and draw another arc in the interior of the

angle

4. Label the intersection of the arcs in the interior of the angle as

Point D

5. Use the straightedge to draw AD ray

From the steps above

The order of the steps is:

Step 1. is the fifth statement

Step 2. is the first statement

Step 3. is the second statement

Step 4. is the third statement

Step 5. is the fourth statement

Learn more:

You can learn more about construction in brainly.com/question/3309261

#LearnwithBrainly

gavmur [86]2 years ago
3 0

For those of you who are doin the test rn here are the answers to all of them. Hope this helps! ;) I did the quiz

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a farmer plowed 35 acres which yielded 5691 bushels of corn. if he plants the same type of corn in 42 acres, how many bushels sh
DENIUS [597]

Answer:

6829 bushels should be expect go harvest

7 0
2 years ago
A random sample of 20 recent weddings in a country yielded a mean wedding cost of $ 26,388.67. Assume that recent wedding costs
Makovka662 [10]

Answer:

a) 95% confidence interval for the mean​cost, μ​, of all recent weddings in this country = (22,550.95, 30,226.40)

.The​ 95% confidence interval is from $22,550.95 to $30,226.40.

b) For the interpretation of the result, option D is correct.

We can be​ 95% confident that the mean​ cost, μ​, of all recent weddings in this country is somewhere within the confidence interval.

c) Option B is correct.

The population mean may or may not lie in this​ interval, but we can be​ 95% confident that it does.

Step-by-step explanation:

Sample size = 20

Sample Mean = $26,388.67

Sample Standard deviation = $8200

Confidence Interval for the population mean is basically an interval of range of values where the true population mean can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample mean) ± (Margin of error)

Sample Mean = 26,388.67

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error of the mean)

Critical value will be obtained using the t-distribution. This is because there is no information provided for the population mean and standard deviation.

To find the critical value from the t-tables, we first find the degree of freedom and the significance level.

Degree of freedom = df = n - 1 = 20 - 1 = 19.

Significance level for 95% confidence interval

(100% - 95%)/2 = 2.5% = 0.025

t (0.025, 19) = 2.086 (from the t-tables)

Standard error of the mean = σₓ = (σ/√n)

σ = standard deviation of the sample = 8200

n = sample size = 20

σₓ = (8200/√20) = 1833.6

99% Confidence Interval = (Sample mean) ± [(Critical value) × (standard Error of the mean)]

CI = 26,388.67 ± (2.093 × 1833.6)

CI = 26,388.67 ± 3,837.7248

99% CI = (22,550.9452, 30,226.3948)

99% Confidence interval = (22,550.95, 30,226.40)

a) 95% confidence interval for the mean​cost, μ​, of all recent weddings in this country = (22,550.95, 30,226.40)

.The​ 95% confidence interval is from $22,550.95 to $30,226.40.

b) The interpretation of the confidence interval obtained, just as explained above is that we can be​ 95% confident that the mean​ cost, μ​,of all recent weddings in this country is somewhere within the confidence interval

c) A further explanation would be that the population mean may or may not lie in this​ interval, but we can be​ 95% confident that it does.

Hope this Helps!!!

4 0
2 years ago
The probability of a spinner landing on a 4 is 5/8. What is the probability that the spinner will land on a number other than 4?
Alja [10]
The probability that it doesn't land on 4 would be 3/8. This is because theres a 5/8 chance it lands on 4 so just do the opposite which would be 3/8. 
5 0
3 years ago
I need help asap with this
tatyana61 [14]

Answer:

51°

Step-by-step explanation:

Given

<QPR = 39°

<PQR = 90° ( inscribed angle in semi circle)

Now

<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle)

39° + 90° + <PRQ = 180°

<PRQ = 180° - 39° - 90°

<PRQ = 51°

Hope it will help :)

5 0
2 years ago
In 1894, women were granted the right to vote in South Australia.
julsineya [31]
2009 - 1894 = 115

That appears to be the same number as
the one that appears in Choice-'B'.
7 0
3 years ago
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